[Trexmaster]

With the new floor-clear indicator message, I think it'd be nice to have a message for when a boss spawns, is present, or dies in static dungeons, akin to the one printed on entering a floor devoid of monsters.

It'd make hunting down bosses in static dungeons a bit less of a pain, since there'd be no more wild goose chases looking for a boss that hasn't spawned yet.